GnomeTweaks ZIP Extraction Path Traversal in Theme Installer
CVE-2026-74859 Published on September 8, 2026
Gnome-tweaks: path traversal in theme installer
The shell theme installer in gnome-tweaks extracts user-supplied ZIP archives without validating archive member paths. As a result, a crafted theme archive can write files outside ~/.themes by using ../ path traversal, absolute paths, or symlink entries.
Vulnerability Analysis
CVE-2026-74859 can be exploited with local system access, requires user interaction and a small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality, a high impact on integrity and availability.
Timeline
Reported to Red Hat.
Made public.
Weakness Type
What is a Directory traversal Vulnerability?
The software uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the software does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
CVE-2026-74859 has been classified to as a Directory traversal vulnerability or weakness.
Products Associated with CVE-2026-74859
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